38691-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 38691-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,6,9 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 38691-97:
(7*3)+(6*8)+(5*6)+(4*9)+(3*1)+(2*9)+(1*7)=163
163 % 10 = 3
So 38691-97-3 is a valid CAS Registry Number.